LMC N11: Chandra X-Ray Point Source Catalog for a Giant HII Region

The Large Magellanic Cloud's giant H II region N11 was observed by the Chandra X-ray Observatory in 2007. The 280-ks useful exposure resulted in a catalog of 165 detected point sources, including 13 massive stars and 11 foreground stars. The investigation was performed by the National Aeronautics and Space Administration.

Use Cases

• Classifying X-ray point sources based on luminosity and spectral bands mentioned in the description
• Studying the properties of massive stars and colliding-wind systems based on the log(L_X/L_BOL) ratios reported
• Analyzing diffuse X-ray emission regions and their potential contamination by unresolved stellar populations
• Comparing X-ray source populations in the LMC to those in the Milky Way based on the metallicity discussion

Strengths

• High sensitivity with detection down to 10^32 erg s^-1 luminosity
• 165 point sources detected, increasing known sources in the field by more than a factor of five
• Data processed with multiple source detection algorithms (wavelet, sliding-box, maximum likelihood) across three energy bands

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Observations from the Chandra X-ray Observatory ACIS-I instrument over six segments in 2007

Time Range

2007

Freshness

Last updated 2026-03-13 17:16:18.486186; freshness should be verified

Geography

N11 region within the Large Magellanic Cloud